I love when a book pulls a little known piece of history and creates an amazing story around it. This one did that twice. Once with the Pack Horse Librarians and then with the Kentucky Blue People. The story was told shining a very interesting light on prejudice, and on poverty. The characters were deeply drawn, I can picture every one of them and hear their individual voices. I just kept wondering as I read, were the two stories so unique, and so interesting, that they should have each had their own book. Could the librarians have held their own story by expanding past the main character's route? Did the blue people have more history and more stories that could have been told?